1400507 has 2 divisors, whose sum is σ = 1400508. Its totient is φ = 1400506.

The previous prime is 1400489. The next prime is 1400527. The reversal of 1400507 is 7050041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1400507 - 2⁸ = 1400251 is a prime.

It is a super-2 number, since 2×1400507² = 3922839714098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1400527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700253 + 700254.

It is an arithmetic number, because the mean of its divisors is an integer number (700254).

2^1400507 is an apocalyptic number.

1400507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400507 is an equidigital number, since it uses as much as digits as its factorization.

1400507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1400507 is about 1183.4301838300. The cubic root of 1400507 is about 111.8823967520.

Adding to 1400507 its reverse (7050041), we get a palindrome (8450548).

The spelling of 1400507 in words is "one million, four hundred thousand, five hundred seven".